process.nextTick(function () {
    console.log('nextTick 延迟执行 1');
});

process.nextTick(function () {
    console.log('nextTick 延迟执行 2');
});

setImmediate(function () {
    console.log('setImmediate 延迟执行 1');
    process.nextTick(function () {
        console.log('强势插入');
    });
});

setImmediate(function () {
    console.log('setImmediate 延迟执行 2');
});

console.log('正常执行');
